Si4362
H
I GH
-P
E R F O R M A N C E
, L
O W
-C
U R R E N T
R
E C E I V E R
Features
GPIO3
GPIO2
Applications
SDN
1
20 19 18 17 16
15 nSEL
Smart metering (802.15.4g and MBus)
Remote control
Home security and alarm
Telemetry
Garage and gate openers
VDD
NC
GPIO0
Description
Silicon Labs Si4362 devices are high-performance, low-current receivers
covering the sub-GHz frequency bands from 142 to 1050 MHz. The
radios are part of the EZRadioPRO
®
family, which includes a complete
line of transmitters, receivers, and transceivers covering a wide range of
applications. All parts offer outstanding sensitivity of –126 dBm while
achieving extremely low active and standby current consumption. The
60 dB adjacent channel selectivity with 12.5 kHz channel spacing
ensures robust receive operation in harsh RF conditions, which is
particularly important for narrowband operation. RX current of 10 mA
coupled with extremely low standby current and fast wake times ensure
extended battery life in the most demanding applications. The devices are
compliant with all worldwide regulatory standards: FCC, ETSI, and ARIB.
Patents pending
Rev 0.4 2/13
Copyright © 2013 by Silicon Laboratories
GPIO1
VDD
Remote keyless entry
Home automation
Industrial control
Sensor networks
Health monitors
Electronic shelf labels
RXp 2
RXn 3
NC 4
NC 5
6
7
8
9
GND
PAD
10 11 nIRQ
XOUT
14 SDI
13 SDO
12 SCLK
GND
XIN
Frequency
Excellent selectivity performance
range = 142–1050 MHz
60 dB adjacent channel
75 dB blocking at 1 MHz
Receive sensitivity = –126 dBm
Antenna diversity and T/R switch
Modulation
control
(G)FSK, 4(G)FSK, (G)MSK
Highly configurable packet handler
OOK and ASK
Low active power consumption
RX 64 byte FIFOs
10/13 mA RX
Auto frequency control (AFC)
Ultra low current powerdown
Automatic gain control (AGC)
modes
Low BOM
30 nA shutdown, 50 nA standby
Low battery detector
Data rate = 100 bps to 1 Mbps
Temperature sensor
Fast wake and hop times
20-Pin QFN package
Power supply = 1.8 to 3.6 V
Pin Assignments
Si4362
Si4362
Functional Block Diagram
GPIO3 GPIO2
Loop
Filter
VCO
FBDIV
DIV
SDN
RF
PKDET
LNA
PGA
LO
Gen
IF
PKDET
MODEM
FIFO
Packet
Handler
nSEL
SDI
SDO
SCLK
nIRQ
SPI Interface
Controller
Frac-N Div
30 MHz XO
Bootup
OSC
PFD / CP
XIN XOUT
RXP
RXN
ADC
LDOs
POR
LBD
32K LP
OSC
VDD
Digital
Logic
GPIO0 GPIO1
2
Rev 0.4
Si4362
T
ABLE O F
C
ONTENTS
Section
Page
1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1. Definition of Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3. Controller Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1. Serial Peripheral Interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2. Fast Response Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.3. Operating Modes and Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4. Application Programming Interface (API) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.5. Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.6. GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4. Modulation and Hardware Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1. Hardware Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2. Preamble Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5. Internal Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1. RX Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2. RX Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3. Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
5.4. Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
6. Data Handling and Packet Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
6.1. RX FIFOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2. Packet Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7. RX Modem Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8. Auxiliary Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.1. Wake-up Timer and 32 kHz Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.2. Low Duty Cycle Mode (Auto RX Wake-Up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
8.3. Temperature, Battery Voltage, and Auxiliary ADC . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.4. Low Battery Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
8.5. Antenna Diversity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9. Pin Descriptions: Si4362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
10. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
11. Package Outline: Si4362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
12. PCB Land Pattern: Si4362 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
13. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
13.1. Si4362 Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
13.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Rev 0.4
3
Si4362
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Ambient Temperature
Supply Voltage
I/O Drive Voltage
Symbol
T
A
V
DD
V
GPIO
Test Condition
Min
–40
1.8
1.8
Typ
25
Max
85
3.6
3.6
Unit
C
V
V
Table 2. DC Characteristics
1
Parameter
Supply Voltage
Range
Symbol
V
DD
RC Oscillator, Main Digital Regulator,
and Low Power Digital Regulator OFF
Register values maintained and RC
oscillator/WUT OFF
RC Oscillator/WUT ON and all register values main-
tained, and all other blocks OFF
Sleep current using an external 32 kHz crystal.
2
Low battery detector ON, register values maintained,
and all other blocks OFF
Crystal Oscillator and Main Digital Regulator ON,
all other blocks OFF
RX Tune, High Performance Mode
High Performance Mode
Low Power Mode
2
Test Condition
Min
1.8
—
—
—
—
—
—
—
—
—
Typ
3.3
30
50
900
1.7
1
1.8
7.2
13.7
10.7
Max
3.6
—
—
—
—
—
—
—
—
—
Unit
V
nA
nA
nA
µA
µA
mA
mA
mA
mA
Power Saving Modes I
Shutdown
I
Standby
I
SleepRC
I
SleepXO
I
Sensor
-LBD
I
Ready
TUNE Mode Current
RX Mode Current
I
Tune_RX
I
RXH
I
RXL
Notes:
1.
All specifications guaranteed by production test unless otherwise noted. Production test conditions and max limits are
listed in the "Production Test Conditions" section of "1.1. Definition of Test Conditions" on page 11.
2.
Guaranteed by qualification. Qualification test conditions are listed in the “Qualification Test Conditions” section in "1.1.
Definition of Test Conditions" on page 11.
4
Rev 0.4
Si4362
Table 3. Synthesizer AC Electrical Characteristics
1
Parameter
Synthesizer Frequency
Range (Si4362)
Symbol
F
SYN
Test Condition
Min
142
284
420
850
Synthesizer Frequency
Resolution
3
F
RES-960
F
RES-525
F
RES-350
F
RES-175
Synthesizer Settling Time
4
t
LOCK
850–1050 MHz
420–525 MHz
283–350 MHz
142–175 MHz
Measured from exiting Ready mode with
XOSC running to any frequency.
Including VCO Calibration.
—
—
—
—
—
Typ
—
—
—
—
28.6
14.3
9.5
4.7
50
Max
175
350
525
1050
—
—
—
—
—
Unit
MHz
MHz
MHz
MHz
Hz
Hz
Hz
Hz
µs
Notes:
1.
All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are
listed in the “Production Test Conditions” section in "1.1. Definition of Test Conditions" on page 11.
2.
For applications that use the major bands covered by Si4362, customers should use those parts instead of Si4362.
3.
Default API setting for modulation deviation resolution is double the typical value specified.
4.
Guaranteed by qualification. Qualification test conditions are listed in the "Qualification Test Conditions" section in "1.1.
Definition of Test Conditions" on page 11.
Rev 0.4
5
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